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Searched refs:log2 (Results 1 – 25 of 30) sorted by relevance

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/linux/arch/m68k/fpsp040/
H A Dsetox.S34 | argument X whose magnitude is less than 16380 log2, which
79 | Step 2. Calculate N = round-to-nearest-int( X * 64/log2 ).
81 | 2.2 N := round-to-nearest-integer( X * 64/log2 ).
99 | Z = X*(64/log2)*(1+eps), |eps| <= 2^(-24).
103 | Step 3. Calculate X - N*log2/64.
104 | 3.1 R := X + N*L1, where L1 := single-precision(-log2/64).
105 | 3.2 R := R + N*L2, L2 := extended-precision(-log2/64 - L1).
107 | the value -log2/64 to 88 bits of accuracy.
115 | N = rnd-to-int( X*64/log2 (1+eps) ), |eps|<=2^(-24)
116 | X*64/log2 (1+eps) = N + f, |f| <= 0.5
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H A Dscosh.S23 | 1. If |X| > 16380 log2, go to 3.
25 | 2. (|X| <= 16380 log2) Cosh(X) is obtained by the formulae
30 | 3. (|X| > 16380 log2). If |X| > 16480 log2, go to 5.
32 | 4. (16380 log2 < |X| <= 16480 log2)
42 | 5. (|X| > 16480 log2) sinh(X) must overflow. Return
H A Dstanh.S23 | 1. If |X| >= (5/2) log2 or |X| <= 2**(-40), go to 3.
25 | 2. (2**(-40) < |X| < (5/2) log2) Calculate tanh(X) by
30 | 3. (|X| <= 2**(-40) or |X| >= (5/2) log2). If |X| < 1,
33 | 4. (|X| >= (5/2) log2) If |X| >= 50 log2, go to 6.
35 | 5. ((5/2) log2 <= |X| < 50 log2) Calculate tanh(X) by
40 | 6. (|X| >= 50 log2) Tanh(X) = +-1 (round to nearest). Thus, we
H A Dssinh.S23 | 1. If |X| > 16380 log2, go to 3.
25 | 2. (|X| <= 16380 log2) Sinh(X) is obtained by the formulae
30 | 3. If |X| > 16480 log2, go to 5.
32 | 4. (16380 log2 < |X| <= 16480 log2)
43 | 5. (|X| > 16480 log2) sinh(X) must overflow. Return
H A Dstwotox.S325 cmpil #0x400B9B07,%d0 | ...|X| <= 16480*log2/log10 ?
/linux/samples/bpf/
H A Dlwt_len_hist.bpf.c24 static unsigned int log2(unsigned int v) in log2() function
41 return log2(hi) + 32; in log2l()
43 return log2(v); in log2l()
H A Dlathist_kern.c40 static unsigned int log2(unsigned int v) in log2() function
59 return log2(hi) + 32; in log2l()
61 return log2(v); in log2l()
/linux/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/
H A Dhost.fuc40 .equ #fifo_qlen 4 // log2(size of queue entry in bytes)
41 .equ #fifo_qnum 3 // log2(max number of entries in queue)
49 .equ #rfifo_qlen 4 // log2(size of queue entry in bytes)
50 .equ #rfifo_qnum 3 // log2(max number of entries in queue)
H A Dmacros.fuc146 .equ #proc_qlen 4 // log2(size of queue entry in bytes)
147 .equ #proc_qnum 2 // log2(max number of entries in queue)
/linux/tools/mm/
H A Dthpmaps28 PAGE_SHIFT = int(math.log2(PAGE_SIZE))
30 PMD_ORDER = int(math.log2(PMD_SIZE / PAGE_SIZE))
272 folio_orders = np.log2(folio_nrs).astype(np.uint64)
517 order = int(math.log2(size / PAGE_SIZE))
/linux/sound/soc/fsl/
H A Dfsl_xcvr.c335 u32 i, div = 0, log2, val; in fsl_xcvr_en_phy_pll() local
351 log2 = ilog2(div); in fsl_xcvr_en_phy_pll()
384 FSL_XCVR_PLL_PDIVx(log2, 0)); in fsl_xcvr_en_phy_pll()
391 FSL_XCVR_PLL_PDIVx(log2, 1)); in fsl_xcvr_en_phy_pll()
398 FSL_XCVR_PLL_PDIVx(log2, 2)); in fsl_xcvr_en_phy_pll()
441 fsl_xcvr_pll_cfg[i].mfn, fsl_xcvr_pll_cfg[i].mfd, div, log2); in fsl_xcvr_en_phy_pll()
/linux/arch/m68k/ifpsp060/src/
H A Dfplsp.S6733 # Step 2. Calculate N = round-to-nearest-int( X * 64/log2 ). #
6736 # 2.2 N := round-to-nearest-integer( X * 64/log2 ). #
6753 # Z = X*(64/log2)*(1+eps), |eps| <= 2^(-24). #
6757 # Step 3. Calculate X - N*log2/64. #
6759 # where L1 := single-precision(-log2/64). #
6761 # L2 := extended-precision(-log2/64 - L1).#
6763 # approximate the value -log2/64 to 88 bits of accuracy. #
6772 # N = rnd-to-int( X*64/log2 (1+eps) ), |eps|<=2^(-24) #
6773 # X*64/log2 (1+eps) = N + f, |f| <= 0.5 #
6774 # X*64/log2 - N = f - eps*X 64/log2 #
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H A Dfpsp.S6998 # Step 2. Calculate N = round-to-nearest-int( X * 64/log2 ). #
6999 # 2.1 N := round-to-nearest-integer( X * 64/log2 ). #
7009 # Step 3. Calculate X - N*log2/64. #
7011 # where L1 := single-precision(-log2/64). #
7013 # L2 := extended-precision(-log2/64 - L1).#
7015 # shows that |R| <= 0.0055 (note that |X| <= 70 log2 in #
7705 # Y' := Y - 16381 log2 #
7820 # Y' := Y - 16381 log2 #
8945 # 4. Overwrite r := r * log2. Then #
9490 long 0x3fff0000,0xb8aa3b29,0x5c17f0bc # log2(e)
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/linux/fs/xfs/
H A Dxfs_rtalloc.c1682 int log2; /* log of sequence number */ in xfs_rtpick_extent() local
1696 log2 = xfs_highbit64(seq); in xfs_rtpick_extent()
1697 if (log2 != -1) { in xfs_rtpick_extent()
1698 resid = seq - (1ULL << log2); in xfs_rtpick_extent()
1700 (log2 + 1); in xfs_rtpick_extent()
/linux/Documentation/translations/zh_CN/core-api/
H A Dkernel-api.rst157 include/linux/log2.h
/linux/Documentation/admin-guide/device-mapper/
H A Ddm-integrity.rst241 * log2(interleave sectors)
256 * log2(sectors per block)
302 in one run must be a power of two. log2 of this value is stored
/linux/arch/arm/mm/
H A Dproc-macros.S351 pr_sz \dest, \size, \size @ calculate log2(size) - 1
/linux/Documentation/translations/zh_CN/dev-tools/
H A Dkcov.rst155 * 1 & 2 比特包含参数大小的 log2 值，最大 8 字节。
/linux/arch/powerpc/platforms/ps3/
H A DKconfig44 expressed as the log2 of the page table size. Valid values are
/linux/arch/m68k/math-emu/
H A Dfp_scan.S368 .long 0x00003fff,0xb8aa3b29,0x5c17f0bc | log2(e)
/linux/Documentation/core-api/
H A Dkernel-api.rst162 .. kernel-doc:: include/linux/log2.h
/linux/drivers/net/ethernet/chelsio/cxgb3/
H A Dt3_hw.c2846 unsigned int log2 = fls(mtu); in t3_load_mtus() local
2848 if (!(mtu & ((1 << log2) >> 2))) /* round */ in t3_load_mtus()
2849 log2--; in t3_load_mtus()
2851 (i << 24) | (log2 << 16) | mtu); in t3_load_mtus()
/linux/Documentation/dev-tools/
H A Dkcov.rst156 * Bits 1 & 2 contain log2 of the argument size, up to 8 bytes.
/linux/tools/perf/
H A Dbuiltin-ftrace.c791 i = log2(num); in make_histogram()
/linux/arch/x86/math-emu/
H A DREADME244 about 64 + log2(cos(x)) = 31 bits.

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